How do I size an industrial air compressor?

Size a compressor by the total CFM (cubic feet per minute) your tools and equipment require at their operating PSI, then add roughly 30% headroom for future growth and to avoid running the unit at 100% duty. Add the CFM of every tool that may run simultaneously, match the required pressure (most shop applications run 90-125 PSI), and confirm your available electrical supply (voltage and phase). A1 Compressor Warehouse offers free sizing support to match the right compressor to your application.

What is the difference between oil-free and oil-lubricated air compressors?

Oil-lubricated compressors use oil to lubricate and seal the compression element, offering long life and lower cost for general industrial use, but they require oil changes and can carry trace oil into the air. Oil-free compressors deliver Class 0 air with no oil in the airstream, which is essential for medical, dental, food, electronics, and pharmaceutical applications where any oil contamination is unacceptable. Anest Iwata oil-free scroll compressors are a common choice for these clean-air needs.

What size air compressor do I need for air tools?

Check the CFM requirement for each air tool and add the CFM of all tools that will run at once, then add about 30% headroom. Light tools like impact wrenches need 3-5 CFM, while continuous-demand tools like sanders or grinders can need 8-12 CFM or more. For most professional shops a two-stage compressor in the 5-10 HP range covers a single-bay operation; larger shops and production lines typically move to rotary screw compressors for continuous duty.

Is A1 Compressor Warehouse an authorized dealer?

Yes. A1 Compressor Warehouse is an authorized dealer for Atlas Copco, Anest Iwata, Mattei, Schulz, and EL-AV. Every product ships with genuine OEM parts and full manufacturer warranty. We serve customers nationwide with fast US shipping and provide service in the Carolinas.

What is the difference between a rotary screw and a reciprocating air compressor?

Reciprocating (piston) compressors are ideal for intermittent use and lower-duty applications, delivering high pressure at a lower upfront cost. Rotary screw compressors are built for continuous duty, running cooler and quieter with steadier air delivery, which makes them the standard for shops and plants that use air throughout the day. Variable-speed (VSD) rotary screw models further cut energy costs by matching output to demand.

Do air compressors come with a warranty and shipping?

Yes. All compressors sold by A1 Compressor Warehouse include the full manufacturer warranty and genuine OEM parts. We ship nationwide across the United States, offer same-day quotes, and provide expert sizing support to help you select the right unit before you buy.

Schulz of America

A1 Compressor Warehouse is an authorized Schulz of America dealer, carrying their industrial reciprocating and rotary screw air compressors, air dryers, and accessories. Schulz is Brazil’s largest compressor manufacturer and one of the top industrial compressor brands in the Americas, known for robust construction, competitive pricing, and wide parts availability.

Schulz compressors are a popular choice for small and medium-sized shops that need industrial reliability without the premium price of European brands. Their CSL series two-stage reciprocating compressors and SRP series rotary screw units cover the 5–60 HP range that serves the majority of auto body shops, manufacturing operations, and service facilities. We stock Schulz compressors, air dryers, and genuine OEM maintenance parts.

A solid industrial compressor at a price point that makes sense for growing businesses.

SchulzSchulz P20120HLV80BR-3 Premium Piston CompressorSKU P20120HLV80BR-3$14,220.00

SchulzSchulz 20120HLV80BR-3 Piston CompressorSKU 20120HLV80BR-3

20 HP58 CFM120 gallon

$12,600.00

Schulz 360VV15-1 Oil-Less Piston Compressor

SchulzSchulz 360VV15-1 3 HP Oil-Less Piston Air CompressorSKU 360VV15-1

3 HP6.5 CFM60 gallon

$4,950.00

Schulz SRP 3015 Compact 15 HP open-frame rotary screw air compressor with 60-gallon tank — front view

SchulzSchulz SRP Compact Rotary Screw CompressorsSKU SCH-SRP-COMPACT-ROTARY-S-0261

40 HP